System for controlling drive of stepping motor

Details System for controlling drive of stepping motor System for controlling drive of stepping motor

1995-11-14

1997-07-15

Ro, Bentsu

Electricity: motive power systems

Positional servo systems

With particular motor control system responsive to the...

318696, H02P 836

Patent

active

056487100

ABSTRACT:
A drive control system for a stepping motor prevents erroneous operation of a motor drive circuit due to the lack of coincidence between the logic level and an analog 0 voltage. This is accomplished by inhibiting an electric current from flowing by closing a gate circuit until a reference voltage for specifying a drive current into an input terminal reaches a specified voltage with respect to the ground potential, regardless of the output from a comparator to the terminal.

REFERENCES:
patent: 4420717 (1983-12-01), Wallace et al.
patent: 4587473 (1986-05-01), Turvey
patent: 4683409 (1987-07-01), Boillat
patent: 4851755 (1989-07-01), Fincher
patent: 4959601 (1990-09-01), Kikugawa

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